FIGURE 8. Var i ou s Zosterodasys species and their supposed synonyms from life (A), after Heidenhain's haematoxylin stain (J), and after protargol impregnation (B–I). (A–F) Zosterodasys minutus, ventral view of a representative specimen (A), variability of body shape and size as well as of the nuclear apparatus (B–D), ventral (E) and dorsal (F) view of ciliary pattern and nuclear apparatus. Note the S-shaped pattern of the synhymenium which completely encircles the cell (C–F). From Gong et al. (2007). (G, H) Zosterodasys minor, total ventral view of ciliary pattern (G) and dorsal view of ciliary pattern in anterior body region (H). From Alekperov et al. (2007/8). Reprinted by permission from "Protistology", 2007/2008, 5 (2/3): 101–130. (I) Chilodontopsis vorax (?), total ventral view of ciliary pattern and nuclear apparatus. From Burkovsky (1970a). (J) Zosterodasys numerosus, ventral view of a representative specimen showing many scattered contractile vacuoles. From Ozaki & Yagiu (1941).